NIH Begins Human Testing of Investigational Zika Vaccine

Posted at 2:15 p.m.

The National Institutes of Health (NIH) reports today that the National Institute of Allergy and Infectious Diseases (NIAID) has launched a clinical trial of a vaccine candidate intended to prevent Zika virus infection.

The early-stage study will evaluate the experimental vaccine’s safety and ability to generate an immune system response in participants. At least 80 healthy volunteers ages 18-35 years at three study sites in the United States, including the NIH Clinical Center in Bethesda, Md., are expected to participate in the trial.

Scientists at NIAID’s Vaccine Research Center (VRC) developed the investigational vaccine — called the NIAID Zika virus investigational DNA vaccine — earlier this year.

Read more in this NIH news release. Learn more about Zika from the county’s Health Department, including flyers and posters you can print out and share, public service announcements and other resources.

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2 responses to “NIH Begins Human Testing of Investigational Zika Vaccine”

  1. EMAF says :

    Is Fairfax County going to do anything to decrease the mosquito population? Some areas are horrible and a huge health concern.

    • Fairfax County Emergency Information says :

      The Fairfax County Health Department uses an integrated approach to mosquito control that includes education, source reduction, larviciding and other control measures, as needed. This summer the Health Department is monitoring for Zika virus within the local mosquito population and taking steps to prevent local transmission of the virus. These activities include:
      • Educating about mosquito bite prevention (Wearing long-sleeved shirts and long pants, using EPA-registered insect repellents, using permethrin-treated clothing staying, sleeping in screened-in or air-conditioned rooms, and avoiding or limiting outdoor activities during peak mosquito times);
      • Inspecting properties to eliminate mosquito breeding sites through source reduction (tip and toss standing water);
      • Conducting targeted larval control (application of a bacterial pesticide that kills mosquito larvae in the water before they become flying adults) for containers that can hold water but cannot be covered or emptied; and
      • Applying an EPA-approved barrier spray of liquid permethrin to vegetation (if necessary) to help control adult mosquitoes and protect public health.

      While the department does not routinely conduct spraying for nuisance mosquitoes, it does inspect county-owned property for mosquitoes and private property upon owner request. Residents who have concerns about standing water or potential mosquito breeding sites can contact the Disease Carrying Insects Program at 703-246-8931, TTY 711 or by email to